Heaton Mersey is a suburb of Stockport, Greater Manchester, England. It is situated on the north-western border of Stockport, adjacent to Didsbury and Burnage in Manchester. Heaton Mersey is a mostly residential area and commuter zone for Manchester. Heaton Mersey and its neighbouring areas (Heaton Norris, Heaton Chapel and Heaton Moor) are collectively known as the Four Heatons. Part of Heaton Mersey has been designated a conservation area.